Accessory Structures in Pittsburg, CA (2026)
3 verified accessory structures rules for Pittsburg, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
ADUs in Pittsburg follow statewide mandates under CA Gov Code 65852.2, AB 68, AB 881, SB 13, and AB 1033. All single-family and multifamily residential lots may add at least one ADU and one JADU. Minimum 4-foot side/rear setbacks, no replacement parking within 1/2 mile of transit, 60-day permit processing, and no impact fees under 750 sq ft.
Accessory Structures: Adu Permits
Few RestrictionsShed Rules
Sheds and accessory structures under 120 square feet generally do not require a building permit in Pittsburg under California Building Code Section 105.2. Larger sheds and any structure with electrical, plumbing, or mechanical must be permitted and meet zoning setbacks (typically 3-5 feet from side/rear property lines).
Accessory Structures: Sheds
Few RestrictionsGarage Conversions
Pittsburg regulates garage conversions to ADUs under Pittsburg Municipal Code (PMC) Title 18, primarily Chapter 18.50 Residential Districts and Schedule 18.50.315 (design and development standards for ADUs/JADUs), consistent with California Government Code §65852.2. Garage conversions are allowed in R-1, R-2, R-3, and R-4 zones with no minimum lot size and no replacement parking required.
Pittsburg CA Garage Conversion to ADU
Few RestrictionsLooking for Contra Costa County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Pittsburg city rules.
Accessory Structures in Contra Costa County →